δ Scuti (delta Scuti)

Above the horizon. Rise: 21:16 | Tran: 2:32 | Set: 7:45

Alt: 7.96° Az: 244.53° Direction: West-South-West

δ Scuti is a variable and multiple giant star of spectral class F2 in the constellation of Scutum.

δ Scuti visual magnitude is 4.72. Because of its moderate brightness, δ Scuti is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of δ Scuti. The red arrow shows the motion of δ Scuti during the next 100000 years (15.00 arcmin in Right Ascension and 3.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 18h 43m 39s

Declination -09° 01’ 33”

Hour Angle 04h 19m 28s

Sidereal Time 23h 03m 08s

J2000

Right Ascension 18h 42m 16s

Declination -09° 03’ 09”

Galactic Coordinates

Galactic Longitude 23.83°

Galactic Latitude -2.1°

Finder Chart

Loading map...

Finder chart for δ Scuti (delta Scuti).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.72

Class Giant

δ Scuti is also a De chemically peculiar star.

Absolute magnitude 0.93

Spectral Type F2III

Color Index (B-V) 0.35

Temperature 7158K

The red dot in the diagram below shows where δ Scuti is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of δ Scuti. Attribution: Richard Powell / CC BY-SA

Star System Properties

δ Scuti is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the δ Scuti double sysyem:

Main star magnitude 4.72

Secondary star magnitude 9.22

Magnitude difference 4.5

Separation 52.6 arcsec

Distance, Radial Speed, Proper Motion

δ Scuti is distant 186.93 light years from the Sun and it is moving towards the Sun at the speed of 45 kilometers per second.

Distance (parsec) 57.34

Distance (light year) 186.93

Radial Speed -45 km/s

Proper Motion RA 0.009 arcsec/y

Proper Motion Dec 0.002"/y

Alternative Designations

Bayer designation δ Scuti
(delta Scuti)

Henry Draper Catalogue HD172748

SAO Catalogue SAO142515

Hipparcos Catalogue HIP91726

Durchmusterung Catalogue BD-09 4796

FK5 Catalogue 1486

General Catalogue of Variable Stars Del Sct

Aitken Double Star Catalogue ADS11581

Visibility from Your Location

Today's δ Scuti (delta Scuti) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 99.0° RISE 21:16

Max altitude: 29.5° TRANSIT 2:32

Azimuth: 261.0° SET 7:45

Set Location

Other stars in Scutum